Speed-indicator.



' e. T. WILLSON.

SPEED INDICATOR.

APPLIQATION FILED JULY 25. 1914.

Patented Aug. 17, 1915.

- g D STATES PATENT OFFICE.

GEORGE '1. WILLSON, OF IPOUGHKEEPSIE, NEW- YORK, ASSIGNOR TO THE DELAVAL SEPARATOR COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEWJERSEY.

SPEED-INDICATOR.

Specification of Letters Patent.

Patented Aug. 17, 1915.

Application filed July 25, 1914. Serial No. 853,243.

To all whom it may concern:

Be it known that I, GEORGE T. WILLSON, a citizen of the United States,residing at Poughkeepsie, Dutchess county, State of member and lie in acorresponding number of planes inclined to one another and whichpreferably do not intersect within the body of the ring member. Thesebandsare of in a plane at right angles to the axis of the shaft or maybe drawn away from said band marked on said member so as to be in aplane perpendicular to the axis of said shaft'when the shaftis-revolving at a given speed, said band being normally out of said NewYork, have invented certain new and plane by the spring.

useful Improvements in Speed-Indicators, The operation of the device isas follows: of which the following is a full, clear, and When the partsare at rest the spring 5 exact description. holds the ring 3 in theposition shown'in My invention relates to an improvement Flg. 2. It isof such strength as to continue in speed indicators and has for itsobject to to hold it 1n that positionuntil the speed of 65 produce asimple and inexpensive speed 1nrotation approaches that desired. for thedicator for giving a visual indication of th Shaft 1. While inthispositiomthe band 9 speed of a rotating shaft. appears to run truewhilathe bands 10 and It further has for its object to provide an l 1wabble and are indistinct. When the de- 1 indicator which is suitablefor indicating to slred speed is reached, centrifugal action 70. the eyethe speed at which cream separators causes the ring member to tilt so asto bring and other similar apparatus are operated. the band 10 into aposition at right angles.

The following is a description of an emto the axls, whereupon the band10 runs true bodiment of my invention, reference being and the bands, 9and 11 wabble. .If the 0 had to the accompanying drawings, in speed is hgh, the band v1 1 is brought into a 7'5 hi h I plane at right angles tothe shaft and runs a Figure l isa side elevation of the comr e and bands9 and IQ wabble. I plete speed indicator. Fig. 2 is a vertical In makingthese indicators the parts may central section of the same. Fig. 3 showsbe assembled except for'the transparent ring I the speed indicator withthe casing removed. 7 and the head 6'. The ring has previously 80 Fig. 4is a transverse section on the line been glven a base color. The shaft 1is then" H, Fi 2, run at a speed slightly below normaland 1 Referringmore particularly to the drawthe surface of the ring member' touchedings 1 indicates the shaft whose speed is to -W1th a brush containingthe 01 1 f r the be measured, the same being provided with band 9. Thespeed 1s .then increased to nor- '85 an extension 2 which may be asleeve secured mal and the band 10 marked thereon in the by a set screw2 to a suitable projection 2 corresponding manner with its color,thereon. Afterward the device'is speeded above nor.-

8 is a ring shaped member having on its mal and the band 11 iscorrespondingly outer periphery a spherical surface 3, and marked W1th 1ts color. Withan automatic secured to the extension 2 by pivot screwsdevlce for bringing the shaft to the desired 44 in line with the axis ofthe shaft 1, so Speeds, the marking process can be quickly as to becapable of moving about an axis earned out. It 1s preferable to havethree passing the shaft axis and at rightangles marklng bands althoughthe single band 10 4o th m alone will indicate the proper speed.

5 is a spring, one end of which is secured As Will be evident to thoseskilled .in the to the ring member 3 and the other end of art, myinventlon permits of various modifiwhich is secured to the shaft 1.cations wlthout departing from the spirit Surrounding the ring member isa casing thereof or the scope of the appended claims.

45 made up of two cup shaped members 6-6 What I clalm 1s:

which fit over the ends of a transparent cyl- 1. In a speed indlcator,the combination inder 7 and are held in place by a screw 8. of arotatable shaft, a member pivotally The spherical surface of the ringshaped. mounted on said shaft, means normally member is provided with aplurality of tending to pull said member out of the plane 50 bands 91011which encircle the ring perpendicularto said shaft, there being a 55distinctive colors such forinstance asred, perpendicular jplane.when'said shaft is at m rest and serving to indicate said given speedwhen the shaft is revolved so as to bring said line into a planeperpendicular to the axis thereof.

ved thereon, means'normally tending to pull said member out of the planeperpendicular to said shaft, there being a band marked on said member soas to be in a plane perpendicular to the axis of said shaft when theshaft is revolving at a given speed, said band being normally out ofsaid perpendicular plane when said shaft is at rest and serving toindicate said given speed when the shaft is revolved so as to bring saidline into a plane perpendicular to the axis thereof.

3. In a speed indicator, in combination, a shaft, a ring pivotallymounted on said shaft so as to rotate relatively to said shaft about aline at right angles to the axis of said 7 shaft and capable of beingmoved so as to bands on the surface of said ring, said bands lie in aplane at right angles to said axis, means tending to move sai saidplane, there being a plurality of colored lying in different planeswhich are at an angle to one another and parallel to the axis upon whichsaid ring'rotates relatively to said shaft.

4. In a speed indicator, in combination, a shaft, a ring pivotallymounted on said shaft so as to rotate relatively to said shaft about aline at right angles to the axis of said shaft and capable of beingmoved so as to lie in a plane at right v angles to said axis, meanstending to move said ring away from said plane, there being a pluralityof colored bands on the surface of said ring,- said bands lying indilferent planes which are at an .angle to one another and parallel tothe axis upon which said ring rotates relatively to said shaft, theplanes of said bands intersecting outside the body of said ring.

5. In a speed indicator, the combination of a rotatable shaft; a memberpivotally mounted on said shaft, the axis of said member intersectingthe axis of said shaft and being at right angles thereto, means normallytending to pull said member out of the plane perpendicular to saidshaft, there being a band marked on said member so as to be in a planeperpendicular to the axis of said shaft when the shaft is revolving 'ata given speed, said band being normally out ring away from of saidperpendicular plane when said shaft is at rest and serving to indicatesaid given speed when the shaft is revolved so as to bring said lineinto a plane perpendicular to the axis thereof.

6. In a speed indicator, the combination of a rotatable shaft, a memberpivotally mounted on said shaft, means normally tending to pullsaldmember out of the plane perpendlcular to said shaft, there being a bandmarked on said member so as to be in a plane perpendicular to the axisof said shaft when the shaft is revolving at a given speed, and ahousing for said member having a window through which said band isvisible when revolving in a plane at right angles to the axis of saidshaft.

7. In a speed indicator, the combination of a rotatable shaft, a memberpivotally mounted on said shaft, means normally tending' to pull saidmember out of the plane perpendicular to said shaft, there being a bandmarked on said member so as to be in a plane perpendicular to the axisof said shaft when the shaft is revolving at a given speed, and ahousing for said member having a window through which said band isvisible when revolving in a plane at right angles to the axis of saidshaft and said housing revolving with said shaft.

8. In a speed indicator, the combination of a rotatable shaft, a ringpivotally mounted on said shaft so as to rotate relatively to said shaftabout a line at right angles to the axis of said. shaft, means tendingto move said ring away from the plane perpendicular to the axis of saidshaft, there being a plurality of colored bands on the surface of saidring for indicating different corresponding speeds, said bands lying indifferent planes which are at an angle to one another and parallel tothe axis upon which.

GEORGE 'r. WILLSON.

Witnesses CHARLES L. POWELL, Gmon MGCANN.

